//LeetCode.17

#include<iostream>
#include<vector>
#include<string>
using namespace std;

vector<string> temp = {"abc","def","ghi","jkl","mno","pqrs","tuv","wxyz"};
vector<string> letterCombinations(string digits) {
    vector<string> result;
    vector<int> index;
    //字符串转数字
    for(int i=0;i<digits.size();i++)
    {
        int num = digits[i]-'1';
        index.push_back(num);
    }
    int count = 0;
    string str = "";    
}
int main()
{
    string digits = "23";
    //字符串转数字
    vector<string>result = letterCombinations(digits);
    for(int i = 0;i < result.size();++i)
    {
        cout<<result[i]<<" ";
    }
    return 0;
}